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GEOFFREY MACKAY

CIK 1741849 · President & CEO · last filed 2023-06-14

GEOFFREY MACKAY is a President & CEO who has filed 21 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing, for TALS, was dated Jun 14, 2023. Across all open-market trades the lifetime net is −$2.2M, making them a net seller over the disclosed history.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

2

Total Filings

21

Lifetime Open-Market Net

-$2.16M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
Tourmaline Bio, Inc. (TALS) Delisted Director — $27.20 — $0 2 2023-06-14
Tectonic Therapeutic, Inc. (AVRO) Delisted President & CEO 214,617 $16.80 $3.61M -$2.16M 13 2023-02-10

Recent Filings

21 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2023-06-14 Tourmaline Bio, Inc. (TALS) Delisted Grant (A) — $0 EDGAR
2023-06-07 TECX Notice (144) −146,927 -$173.4K EDGAR
2023-06-05 TECX Notice (144) −7,152 -$7.9K EDGAR
2023-05-25 TECX Notice (144) −186,841 -$227.9K EDGAR
2023-05-24 TECX Notice (144) −292,215 -$57.34M EDGAR
2023-05-24 TECX Notice (144) −72,604 -$57.34M EDGAR
2023-05-24 TECX Notice (144) −72,604 -$57.34M EDGAR
2023-02-10 Tectonic Therapeutic, Inc. (AVRO) Delisted Grant (A) — $0 EDGAR
2023-01-26 Tectonic Therapeutic, Inc. (AVRO) Delisted Mixed +45,999 $41.9K EDGAR
2022-12-28 Tectonic Therapeutic, Inc. (AVRO) Delisted Exer (M) +142,013 $58.7K EDGAR
Showing 1–10 of 21
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.